Malicious PDF — malware analysis report

Static analysis result for SHA-256 086e22da299d0a6c…

MALICIOUS

PDF

66.5 KB Created: 2020-12-18 01:51:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 151c1c9d5f20dc11f2fe5a11663f21ad SHA-1: 1699db257a32ddfbb19e16e108f6f556f8b2ab88 SHA-256: 086e22da299d0a6ccbbc2c6a23dc601eb1abf98248f16103b0e2a96437c90ffc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafficel.ru/strik?utm_term=teacher+retirement+letter PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc29c05a3bf4b14abb4035c/t/5fc59c183c02f22b9dcd76e9/1606786073031/kujazupumefalukiviz.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2f28524b06a7eb30cb0f7/t/5fcdd5ced336b863f0e40c47/1607325135927/74858901468.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7acbda4492a057e24fc6f/t/5fd0c2c58f1ddd5ccbe45406/1607516870388/wigesifabazawojukeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/118d1a11-00d9-4faa-99ac-298389d85cd4/59713075557.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7e81767-6308-47f6-9abb-2912cc30e40f/90049006287.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57dfef0f-32c3-47b8-ac07-8194768ff35b/61828818166.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ed1560f2895dc1e7fe11/t/5fc10c129d79364840b253a5/1606487058766/ganesha_guided_meditation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec614d8-9073-4612-b8ef-3e0e762cabd2/finders_flea_market_decatur_il.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0187aa5bc066edfa15e28/t/5fc1bbb93c02f22b9d4de518/1606532026845/secret_history_of_the_mongols_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e68475a0-639f-465f-8287-b48daeaa70c1/olympic_compound_archery_distance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5a3727c-459f-49a8-8edb-8e00d70d52ff/danopo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7a55bfa9ecc3978a0ab37/t/5fd62fcc7fc52c20691d7120/1607872462417/66089809241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28c6a030-77ff-41a5-8ca2-f44460f5f59b/ninagurikajejoravat.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ffabf9866f3fd2e1edb8/t/5fc8c9da094cf7617dc91b50/1606994396709/mujepukoxozonivekejipexup.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AB 4812 bytes
SHA-256: 2f63c7590311ff863c7f537310bd5a192a5a8bec38649dbe679e8874beb44aa6
font_01_sfnt_off0000d9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D5 10540 bytes
SHA-256: 424a232f90d98f535a9b48973f055b9b2175fb69d97224a6da32502b117c4d3a

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